English verb conjugation
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Regular verb: energise - energised - energised

Affirmation

Simple form	V-ing form
I must energise you must energise she must energise we must energise you must energise they must energise	I must be energising you must be energising she must be energising we must be energising you must be energising they must be energising
Perfect	V-ing perfect
I must have energised you must have energised she must have energised we must have energised you must have energised they must have energised	I must have been energising you must have been energising she must have been energising we must have been energising you must have been energising they must have been energising

Negation

Simple form	V-ing form
I must not energise you must not energise she must not energise we must not energise you must not energise they must not energise	I must not be energising you must not be energising she must not be energising we must not be energising you must not be energising they must not be energising
Perfect	V-ing perfect
I must not have energised you must not have energised she must not have energised we must not have energised you must not have energised they must not have energised	I must not have been energising you must not have been energising she must not have been energising we must not have been energising you must not have been energising they must not have been energising

Interrogative form

Simple form	V-ing form
must I energise? must you energise? must she energise? must we energise? must you energise? must they energise?	must I be energising? must you be energising? must she be energising? must we be energising? must you be energising? must they be energising?
Perfect	V-ing perfect
must I have energised? must you have energised? must she have energised? must we have energised? must you have energised? must they have energised?	must I have been energising? must you have been energising? must she have been energising? must we have been energising? must you have been energising? must they have been energising?

Interro-negative form

Simple form	V-ing form
must I not energise? must you not energise? must she not energise? must we not energise? must you not energise? must they not energise?	must I not be energising? must you not be energising? must she not be energising? must we not be energising? must you not be energising? must they not be energising?
Perfect	V-ing perfect
must I not have energised? must you not have energised? must she not have energised? must we not have energised? must you not have energised? must they not have energised?	must I not have been energising? must you not have been energising? must she not have been energising? must we not have been energising? must you not have been energising? must they not have been energising?